—I wonder why Mr Green hasn"t showed up at the meeting yet.—I"m not sure，but he_
题型：不详难度：来源：
—I wonder why Mr Green hasn"t showed up at the meeting yet.
—I"m not sure，but he________in a traffic jam driving here.| A．could be stuck | B．might have been stuck | | C．might be stuck | D．must have been stuck |
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答案
B |
解析
试题分析：句意：——我想知道为什么格林先生还没有出现在会议上。——我不确定,但是他可能开车来这里的路上遇到了交通堵塞。根据hasn"t showed up可知格林先生现在还没有出现，那他遇到交通堵塞应在现在之前，过去的时刻，情态动词+have+done表示过去，因此排除AC。must 表示又把我的推测“一定”，might表示没有把我的推测，“也许，可能”，根据 I"m not sure我不确定，选B。
考点： |
举一反三
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-- . You can keep it as long as you like.| A．No, you mustn’t | B．No, you can’t | | C．Yes, you have to | D．No, you needn’t |
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--- Isn’t it Ann’s husband over there?
---- No, it ______ be him---I’m sure he doesn’t wear glasses.| A．can’t | B．must not | C．won’t | D．may not |
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| A．be used to make | B．be used to making | | C．use to make | D．used to making |
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That truck nearly hit me; I ______.| A．might be killed | B．may been killed | | C．may be killed | D．might have been killed |
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